improve addon and comment

1 files changed, 5 insertions, 2 deletions

diff --git a/xmake/core/project/rule.lua b/xmake/core/project/rule.lua
index b8cb72ed4..66c0719a6 100644
--- a/xmake/core/project/rule.lua
+++ b/xmake/core/project/rule.lua
@@ -674,10 +674,13 @@ function rule.rules()
         end
 
         -- make rule instances
+        --
+        -- @note we reuse the rules which have been loaded on demand,
+        -- otherwise we would have two instances of the same rule
+        local loaded = rule._LOADED or {}
         rules = {}
         for rulename, ruleinfo in pairs(ruleinfos) do
-            local instance = rule.new(rulename, ruleinfo)
-            rules[rulename] = instance
+            rules[rulename] = loaded[rulename] or rule.new(rulename, ruleinfo)
         end
         rule._RULES = rules
     end